9
04.06.2019
explosion-proof roof fan
WPA-D-N/Ex
Fig. No.5
– Placement of the protective cables
6.2. Safety control before the start-up:
a
/
check if all the mechanical connections are carried out correctly
b
/
check the correctness of electrical connections and phase sequence
c
/
examine the correctness of the connection between the motor and PE protective cable
After the device is started up
– check if the impeller rotation sense is according to the arrow
on the housing.
